001 /* Copyright (c) 2002 Graz University of Technology. All rights reserved. 002 * 003 * Redistribution and use in source and binary forms, with or without 004 * modification, are permitted provided that the following conditions are met: 005 * 006 * 1. Redistributions of source code must retain the above copyright notice, 007 * this list of conditions and the following disclaimer. 008 * 009 * 2. Redistributions in binary form must reproduce the above copyright notice, 010 * this list of conditions and the following disclaimer in the documentation 011 * and/or other materials provided with the distribution. 012 * 013 * 3. The end-user documentation included with the redistribution, if any, must 014 * include the following acknowledgment: 015 * 016 * "This product includes software developed by IAIK of Graz University of 017 * Technology." 018 * 019 * Alternately, this acknowledgment may appear in the software itself, if 020 * and wherever such third-party acknowledgments normally appear. 021 * 022 * 4. The names "Graz University of Technology" and "IAIK of Graz University of 023 * Technology" must not be used to endorse or promote products derived from 024 * this software without prior written permission. 025 * 026 * 5. Products derived from this software may not be called 027 * "IAIK PKCS Wrapper", nor may "IAIK" appear in their name, without prior 028 * written permission of Graz University of Technology. 029 * 030 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED 031 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 032 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 033 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR BE 034 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 035 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 036 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 037 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 038 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 039 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 040 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 041 * POSSIBILITY OF SUCH DAMAGE. 042 */ 043 044 package demo.pkcs.pkcs11; 045 046 import java.io.ByteArrayOutputStream; 047 import java.io.FileInputStream; 048 import java.io.InputStream; 049 import java.io.PrintWriter; 050 import java.util.Arrays; 051 052 import iaik.pkcs.pkcs11.Mechanism; 053 import iaik.pkcs.pkcs11.Module; 054 import iaik.pkcs.pkcs11.Session; 055 import iaik.pkcs.pkcs11.Slot; 056 import iaik.pkcs.pkcs11.Token; 057 import iaik.pkcs.pkcs11.objects.DES3SecretKey; 058 import iaik.pkcs.pkcs11.parameters.InitializationVectorParameters; 059 // import iaik.security.provider.IAIK; 060 061 062 063 /** 064 * This demo program uses a PKCS#11 module to encrypt a given file and test 065 * if the data can be decrpted. 066 * 067 * @author <a href="mailto:Karl.Scheibelhofer@iaik.at"> Karl Scheibelhofer </a> 068 * @version 0.1 069 * @invariants 070 */ 071 public class EncryptDecrypt { 072 073 static PrintWriter output_; 074 075 static { 076 try { 077 //output_ = new PrintWriter(new FileWriter("Encrypt_output.txt"), true); 078 output_ = new PrintWriter(System.out, true); 079 } catch (Throwable thr) { 080 thr.printStackTrace(); 081 output_ = new PrintWriter(System.out, true); 082 } 083 } 084 085 public static void main(String[] args) { 086 if (args.length != 3) { 087 printUsage(); 088 System.exit(1); 089 } 090 091 try { 092 // Security.addProvider(new IAIK()); 093 094 Module pkcs11Module = Module.getInstance(args[0]); 095 pkcs11Module.initialize(null); 096 097 Slot[] slots = pkcs11Module.getSlotList(Module.SlotRequirement.TOKEN_PRESENT); 098 099 if (slots.length == 0) { 100 output_.println("No slot with present token found!"); 101 System.exit(0); 102 } 103 104 Slot selectedSlot = slots[0]; 105 Token token = selectedSlot.getToken(); 106 107 Session session = 108 token.openSession(Token.SessionType.SERIAL_SESSION, Token.SessionReadWriteBehavior.RO_SESSION, null, null); 109 110 // login user 111 session.login(Session.UserType.USER, args[1].toCharArray()); 112 113 output_.println("################################################################################"); 114 output_.println("generate secret encryption/decryption key"); 115 Mechanism keyMechanism = Mechanism.DES3_KEY_GEN; 116 DES3SecretKey secretEncryptionKeyTemplate = new DES3SecretKey(); 117 secretEncryptionKeyTemplate.getEncrypt().setBooleanValue(Boolean.TRUE); 118 secretEncryptionKeyTemplate.getDecrypt().setBooleanValue(Boolean.TRUE); 119 120 DES3SecretKey encryptionKey = (DES3SecretKey) session.generateKey(keyMechanism, secretEncryptionKeyTemplate); 121 122 output_.println("################################################################################"); 123 124 output_.println("################################################################################"); 125 output_.println("encrypting data from file: " + args[2]); 126 127 InputStream dataInputStream = new FileInputStream(args[2]); 128 129 byte[] dataBuffer = new byte[1024]; 130 int bytesRead; 131 ByteArrayOutputStream streamBuffer = new ByteArrayOutputStream(); 132 133 // feed in all data from the input stream 134 while ((bytesRead = dataInputStream.read(dataBuffer)) >= 0) { 135 streamBuffer.write(dataBuffer, 0, bytesRead); 136 } 137 Arrays.fill(dataBuffer, (byte) 0); // ensure that no data is left in the memory 138 streamBuffer.flush(); 139 streamBuffer.close(); 140 byte[] rawData = streamBuffer.toByteArray(); 141 142 //be sure that your token can process the specified mechanism 143 Mechanism encryptionMechanism = Mechanism.DES3_CBC_PAD; 144 byte[] encryptInitializationVector = { 0, 0, 0, 0, 0, 0, 0, 0}; 145 InitializationVectorParameters encryptInitializationVectorParameters = 146 new InitializationVectorParameters(encryptInitializationVector); 147 encryptionMechanism.setParameters(encryptInitializationVectorParameters); 148 149 // initialize for encryption 150 session.encryptInit(encryptionMechanism, encryptionKey); 151 152 byte[] encryptedData = session.encrypt(rawData); 153 154 output_.println("################################################################################"); 155 156 output_.println("################################################################################"); 157 output_.println("trying to decrypt"); 158 159 //Cipher des3Cipher = Cipher.getInstance("DES3/CBC/PKCS5Padding"); 160 161 Mechanism decryptionMechanism = Mechanism.DES3_CBC_PAD; 162 byte[] decryptInitializationVector = { 0, 0, 0, 0, 0, 0, 0, 0}; 163 InitializationVectorParameters decryptInitializationVectorParameters = 164 new InitializationVectorParameters(decryptInitializationVector); 165 decryptionMechanism.setParameters(decryptInitializationVectorParameters); 166 167 // initialize for decryption 168 session.decryptInit(decryptionMechanism, encryptionKey); 169 170 byte[] decryptedData = session.decrypt(encryptedData); 171 172 // compare initial data and decrypted data 173 boolean equal = false; 174 if (rawData.length != decryptedData.length) { 175 equal = false; 176 } else { 177 equal = true; 178 for (int i=0; i < rawData.length; i++) { 179 if (rawData[i] != decryptedData[i]) { 180 equal = false; 181 break; 182 } 183 } 184 } 185 186 output_.println((equal) ? "successful" : "ERROR"); 187 188 output_.println("################################################################################"); 189 190 session.closeSession(); 191 pkcs11Module.finalize(null); 192 193 } catch (Throwable thr) { 194 thr.printStackTrace(); 195 } 196 } 197 198 public static void printUsage() { 199 output_.println("Usage: EncryptDecrypt <PKCS#11 module> <user-PIN> <file to be encrypted>"); 200 output_.println(" e.g.: EncryptDecrypt pk2priv.dll password data.dat"); 201 output_.println("The given DLL must be in the search path of the system."); 202 } 203 204 }